试题详情
- 单项选择题What is true about joining tables through an equijoin? （）
A、You can join a maximum of two tables through an equijoin.
B、You can join a maximum of two columns through an equijoin.
C、You specify an equijoin condition in the SELECT or FROM clauses of a SELECT statement.
D、To join two tables through an equijoin, the columns in the join condition must be primary key and foreign key columns.
E、You can join n tables (all having single column primary keys) in a SQL statement by specifying a minimum of n-1 join conditions.
关注下方微信公众号，在线模考后查看
热门试题
- TheSTUDENT_GRADEStab
- Which best describes
- User Mary has a view
- For which two constr
- In which scenario wo
- Which are iSQL*Plus
- Which one is a syste
- What does the FORCE
- Examinethestructureo
- Which three statemen
- Examine the structu
- Which is an iSQL*Plu
- The EMPLOYEES table
- Click the Exhibit bu
- Which clause should
- CREATE TABLE dept (
- ClicktheExhibitbutto
- Which SQL statement
- Exhibit: Examinethe
- You want to display